44142613 has 2 divisors, whose sum is σ = 44142614. Its totient is φ = 44142612.

The previous prime is 44142601. The next prime is 44142629. The reversal of 44142613 is 31624144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43996689 + 145924 = 6633^2 + 382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44142613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44142913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22071306 + 22071307.

It is an arithmetic number, because the mean of its divisors is an integer number (22071307).

Almost surely, 2^44142613 is an apocalyptic number.

It is an amenable number.

44142613 is a deficient number, since it is larger than the sum of its proper divisors (1).

44142613 is an equidigital number, since it uses as much as digits as its factorization.

44142613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 25.

The square root of 44142613 is about 6643.9907435215. The cubic root of 44142613 is about 353.4158415560.

Adding to 44142613 its reverse (31624144), we get a palindrome (75766757).

It can be divided in two parts, 44142 and 613, that multiplied together give a triangular number (27059046 = T₇₃₅₆).

The spelling of 44142613 in words is "forty-four million, one hundred forty-two thousand, six hundred thirteen".